I received the number of the Water Drop Mutual Mid-Autumn Health Card. I don't know how to change it. Please give me some guidance! thank you

Please enter "physical examination appointment" on the main page of WeChat official account, and click Send. When the page pops up, click "Enter the physical examination appointment channel" in blue font, and then enter the physical examination webpage for good consultation. Click "Password Exchange" under the package of caring for parents and filial piety, and then follow the prompts to enter the location of the corresponding medical examiner. After the mobile phone verifies the login, you can make an appointment for the medical examination time and place. .